During the game, as long as you click on two identical patterns within the time, if the connection line between the patterns turns no more than 2 times and does not pass through other patterns, it can be eliminated. The condition for passing the level is to complete the elimination of all patterns. If the player's thoughts are temporarily blocked during the game, he can choose to press the prompt button or the dismiss button at the top of the screen to get assistance from the computer. However, each level only has three opportunities, so you must seize them. In addition, there is a pause button, which allows players to temporarily stop the game without any limit on the number of pauses. Note that all levels end after the tenth level and will return to the previous level again. Of course, it is not easy to complete all the levels. The difficulty of the game will continue to increase at each level, so you must continue to work hard!